Calcification in free-living coralline algae is strongly influenced by morphology: Implications for susceptibility to ocean acidification
Abstract Rhodolith beds built by free-living coralline algae are important ecosystems for marine biodiversity and carbonate production. Yet, our mechanistic understanding regarding rhodolith physiology and its drivers is still limited. Using three rhodolith species with different branching morpholog...
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crspringernat:10.1038/s41598-021-90632-6 2023-05-15T17:50:30+02:00 Calcification in free-living coralline algae is strongly influenced by morphology: Implications for susceptibility to ocean acidification Schubert, Nadine Hofmann, Laurie C. Almeida Saá, Antonella C. Moreira, Anderson Camargo Arenhart, Rafael Güntzel Fernandes, Celso Peres de Beer, Dirk Horta, Paulo A. Silva, João European Union’s Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant agreement Fundação para a Ciência e a Tecnologia National Science Foundation Ocean Sciences International Postdoctoral Research Fellow program Deutsche Forschungsgemeinschaft FINEP/Rede CLIMA Conselho Nacional de Desenvolvimento Científico e Tecnológico 2021 http://dx.doi.org/10.1038/s41598-021-90632-6 http://www.nature.com/articles/s41598-021-90632-6.pdf http://www.nature.com/articles/s41598-021-90632-6 en eng Springer Science and Business Media LLC https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 CC-BY Scientific Reports volume 11, issue 1 ISSN 2045-2322 Multidisciplinary journal-article 2021 crspringernat https://doi.org/10.1038/s41598-021-90632-6 2022-01-04T07:08:17Z Abstract Rhodolith beds built by free-living coralline algae are important ecosystems for marine biodiversity and carbonate production. Yet, our mechanistic understanding regarding rhodolith physiology and its drivers is still limited. Using three rhodolith species with different branching morphologies, we investigated the role of morphology in species’ physiology and the implications for their susceptibility to ocean acidification (OA). For this, we determined the effects of thallus topography on diffusive boundary layer (DBL) thickness, the associated microscale oxygen and pH dynamics and their relationship with species’ metabolic and light and dark calcification rates, as well as species’ responses to short-term OA exposure. Our results show that rhodolith branching creates low-flow microenvironments that exhibit increasing DBL thickness with increasing branch length. This, together with species’ metabolic rates, determined the light-dependent pH dynamics at the algal surface, which in turn dictated species’ calcification rates. While these differences did not translate in species-specific responses to short-term OA exposure, the differences in the magnitude of diurnal pH fluctuations (~ 0.1–1.2 pH units) between species suggest potential differences in phenotypic plasticity to OA that may result in different susceptibilities to long-term OA exposure, supporting the general view that species’ ecomechanical characteristics must be considered for predicting OA responses. Article in Journal/Newspaper Ocean acidification Springer Nature (via Crossref) Scientific Reports 11 1 |
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Springer Nature (via Crossref) |
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crspringernat |
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English |
topic |
Multidisciplinary |
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Multidisciplinary Schubert, Nadine Hofmann, Laurie C. Almeida Saá, Antonella C. Moreira, Anderson Camargo Arenhart, Rafael Güntzel Fernandes, Celso Peres de Beer, Dirk Horta, Paulo A. Silva, João Calcification in free-living coralline algae is strongly influenced by morphology: Implications for susceptibility to ocean acidification |
topic_facet |
Multidisciplinary |
description |
Abstract Rhodolith beds built by free-living coralline algae are important ecosystems for marine biodiversity and carbonate production. Yet, our mechanistic understanding regarding rhodolith physiology and its drivers is still limited. Using three rhodolith species with different branching morphologies, we investigated the role of morphology in species’ physiology and the implications for their susceptibility to ocean acidification (OA). For this, we determined the effects of thallus topography on diffusive boundary layer (DBL) thickness, the associated microscale oxygen and pH dynamics and their relationship with species’ metabolic and light and dark calcification rates, as well as species’ responses to short-term OA exposure. Our results show that rhodolith branching creates low-flow microenvironments that exhibit increasing DBL thickness with increasing branch length. This, together with species’ metabolic rates, determined the light-dependent pH dynamics at the algal surface, which in turn dictated species’ calcification rates. While these differences did not translate in species-specific responses to short-term OA exposure, the differences in the magnitude of diurnal pH fluctuations (~ 0.1–1.2 pH units) between species suggest potential differences in phenotypic plasticity to OA that may result in different susceptibilities to long-term OA exposure, supporting the general view that species’ ecomechanical characteristics must be considered for predicting OA responses. |
author2 |
European Union’s Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant agreement Fundação para a Ciência e a Tecnologia National Science Foundation Ocean Sciences International Postdoctoral Research Fellow program Deutsche Forschungsgemeinschaft FINEP/Rede CLIMA Conselho Nacional de Desenvolvimento Científico e Tecnológico |
format |
Article in Journal/Newspaper |
author |
Schubert, Nadine Hofmann, Laurie C. Almeida Saá, Antonella C. Moreira, Anderson Camargo Arenhart, Rafael Güntzel Fernandes, Celso Peres de Beer, Dirk Horta, Paulo A. Silva, João |
author_facet |
Schubert, Nadine Hofmann, Laurie C. Almeida Saá, Antonella C. Moreira, Anderson Camargo Arenhart, Rafael Güntzel Fernandes, Celso Peres de Beer, Dirk Horta, Paulo A. Silva, João |
author_sort |
Schubert, Nadine |
title |
Calcification in free-living coralline algae is strongly influenced by morphology: Implications for susceptibility to ocean acidification |
title_short |
Calcification in free-living coralline algae is strongly influenced by morphology: Implications for susceptibility to ocean acidification |
title_full |
Calcification in free-living coralline algae is strongly influenced by morphology: Implications for susceptibility to ocean acidification |
title_fullStr |
Calcification in free-living coralline algae is strongly influenced by morphology: Implications for susceptibility to ocean acidification |
title_full_unstemmed |
Calcification in free-living coralline algae is strongly influenced by morphology: Implications for susceptibility to ocean acidification |
title_sort |
calcification in free-living coralline algae is strongly influenced by morphology: implications for susceptibility to ocean acidification |
publisher |
Springer Science and Business Media LLC |
publishDate |
2021 |
url |
http://dx.doi.org/10.1038/s41598-021-90632-6 http://www.nature.com/articles/s41598-021-90632-6.pdf http://www.nature.com/articles/s41598-021-90632-6 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
Scientific Reports volume 11, issue 1 ISSN 2045-2322 |
op_rights |
https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1038/s41598-021-90632-6 |
container_title |
Scientific Reports |
container_volume |
11 |
container_issue |
1 |
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1766157262177435648 |